How is the Angle control function of the servo electric gun realized

The Angle control function of the servo electric gun is accurately regulated through high-precision sensors, closed-loop feedback and intelligent algorithms. The core lies in real-time monitoring of the bolt rotation Angle and dynamic correction to ensure that the preset fastening value is reached, meeting the requirements of high-precision assembly.

In terms of hardware, it is equipped with an internal photoelectric or magnetic encoder as the Angle sensor, with a resolution of up to 0.01 degrees. Take a certain brand as an example. The 23-bit encoder provides over 8 million subdivision measurements within a 360-degree range, and can accurately capture even the slightest Angle changes. The sensor converts the Angle signal into digital pulses and transmits them to the controller via a high-speed bus.

The control system adopts a closed-loop feedback mechanism. After receiving the sensor data, the servo driver compares it with the target Angle for calculation. When a deviation occurs, it immediately adjusts the motor current and speed. Based on the PID algorithm, cumulative errors can be eliminated. When the bolt is pre-tightened and the actual Angle lags behind, increase the torque to accelerate the rotation. Overshoot should be avoided by slowing down. Data from a certain automotive production line shows that this method can control the Angle error within ±0.5 degrees, which is far superior to traditional pneumatic wrenches.

Intelligent algorithms have enhanced adaptability and control accuracy.The embedded system can dynamically optimize parameters based on bolt specifications,materials and working conditions.When assembling aluminum alloy bolts,reduce the target Angle threshold and rotational speed to prevent wire slippage.When high-strength tightening of steel bolts,increase the rigidity parameters to ensure the preload.A certain aviation enterprise has used servo electric guns with AI learning functions,which has improved the consistency of the assembly angles of different batches of bolts by 82%and reduced quality fluctuations.

Communication and multi-axis collaboration have expanded applications.Servo electric guns that support industrial Ethernet protocols can be connected to systems such as PLCS to upload Angle data in real time.In multi-axis synchronous assembly,the main controller coordinates multiple electric guns via the EtherCAT bus to ensure that the pre-tightening sequence and angles of multiple bolts are strictly synchronized.After the battery pack production line of a certain new energy vehicle adopted the 12-axis synchronous scheme,the connection qualification rate of battery modules rose from 95%to 99.6%,reducing the abnormal contact resistance caused by uneven torque.

The coordination of mechanical structures is also of vital importance.Servo electric guns typically employ planetary gears or harmonic reducers to convert the high-speed motor into low-speed,high-torque output while ensuring accuracy.Some products are equipped with temperature compensation,which corrects the changes in mechanical clearance caused by thermal expansion through temperature sensors to prevent Angle drift.These innovations ensure reliability under complex working conditions and provide core support for high-precision assembly.